Window construction



Sept. 2, 1958 M. RIFKIN 2,850,312

' WINDOW CONSTRUCTION Filed Aug. 3, 1956 5 Sheets-Sheet 1 INVENTOR M/ can; P/FK/N ATTORNEY Sept. 2, 1958 M. RIFKIN wmnow CONSTRUCTION 5 Sheets-Sheet 2 Filed Aug. 3, 1956 INVENTOR M/cm a PIP/(IN ATTORNEY Sept. 2, 1958 M. RIFKIN wmnow CONSTRUCTION 5 Sheets-Sheet 3 Filed Aug. 3, 1956 INVENTOR 47/0/45; IP/FAl/V ATTORNEY Sept. 2, 1958 M. RIFKIN 2,850,312

WINDOW CONSTRUCTION Filed Aug. s, 1956 5 Sheets-Sheet 4 306 lNVENT OR M/c/Ma iF/FK/N ATTORNEY Sept. 2, 195 8 MRIFKIIN 2,850,312

' v wmnow CONSTRUCTION 7 Filed Aug. s; 1956 5 Sheets-Sheet 5 NV E N TO R MICHAEL P/F'K/N ATTORNEY .2.5.-T1: .2.&.. T I' Z I (I) 56 I soo I" J I ite Ste Patented Sept. 2, 158

sec

1 2,850,312 WINDOW CONSTRUCHON Michael Riflsin, Lyndhurst, N. .l. Application August 3, 1956, Seriai No. 602,031 7 Qlaims. (Ci. 292-149) This invention relates generally to improvements in window construction and, more particularly, to improvements in window construction having sashes mounted for vertical reciprocation in a window frame and being adapted to be removed therefrom.

This application is a continuation-in-part of my application Serial No. 537,714 filed September 30, 1955 for Window Construction which in turn is a continuation-inpart of my application Serial No. 520,966 filed July 11, 1955 for Window Construction.

In my Patent Number 2,694,237 for Window Construction, issued on November 16, 1954, there is disclosed a window construction in which each of the sash members is mounted for vertical reciprocation between a companion pair of runners, one of which is fixed with the opposite one being laterally movable toward its associated jamb member against the bias of spring means disposed between said jamb member and the movable runner. In this arrangement the movement of the movable runner towards its associated jamb member where auxiliary holding means are not utilized, caused for example through inadvertence or accident, or by a frolicking child may be efiective to release a sash for downward movement when the latter is in a raised position, and it is accordingly an important object of thepresent invention to provide an improved window construction which obviates this disadvantage of the above noted construction.

Another object of the present invention is the provision of a window construction having an improved arrangement providing for the slidable movement of the window sashes with a minimum of effort and for retaining said sashes in their vertically adjusted positions, said arrangement including a series of vertically spaced latched positions for positively releasably latching the sashes in corresponding positions.

Another object of the present invention is the provision of an improved latch arrangement for a window construction of the above character for releasably retaining the sashes in their vertically adjusted positions and for positively releasably latching the sashes at vertically spaced positions whereby the application of pressure on the lower ends of the movable runners will be ineffective to release their associated raised sashes for downward movement beyond the next latched position, said latch arrangement including a selectively movable provision for facilitating the removal of the sashes from the window frame.

Another important object of the present invention is the provision of an improved latch arrangement of the aforenoted character having novel means for locking the sashes in a closed, or near closed, condition in a burglarproof manner.

Yet another object of the present invention is the provision of a generally improved window construction Which is of simple design, easy to install and service, economical to mass produce, which allows for a greater degree of free vertical sash movement, and which is eminently suitable in the accomplishment of its intended purposes.

Other objects, features and advantages of the invention will become apparent as the description thereof proceeds when considered in connection with the accompanying illustrative drawings in which:

Fig. 1 is a fragmentary horizontal sectional view of a window construction formed according to the present invention;

Fig. 2 is a view similar to Fig. 1 illustrating the operation of removing a sash from the window frame;

Fig. 3 is a fragmentary perspective view of the upper ends of the movable runners in association with the upper fixed parting strip;

Fig. 4 is a fragmentary perspective view of the fixed runner formed according to the present invention;

Fig. 5 is a fragmentary horizontal sectional view showing a sash stile and its associated latch device;

Fig. 6 is a fragmentary side view of a sash stile in the region of the latch device;

Fig. 7 is a perspective view of the latch device formed according to the present invention;

Fig. 8 is a fragmentary elevational view illustrating another form of latching member and its companion spring;

Fig. 9 is a view similar to the right hand part of Fig. 1 illustrating a modified form of window construction which is constructed without the use of a fixed runner;

Fig. 10 is a fragmentary perspective view of the jamb shown in Fig. 9;

Fig. 11 is a view similar to Fig. 10 illustrating a modified form of jamb;

Fig. 12 is a view similar to Fig. 11 illustrating another modified form of jamb;

Fig. 13 is a fragmentary perspective view of another modified form of jamb having a fixed runner associated therewith;

Fig. 14 is a fragmentary front view of yet another modified form of jamb;

Fig. 15 is a horizontal sectional view, on an enlarged scale, of one of the latching member tracks shown in Fig. 14;

Fig. 16 is a perspective View of a modified form of latch device and associated structure with part of the latch device shown broken away to reveal structural details; V

Fig. 17 is a fragmentary horizontal sectional view showing a sash stile and associated latch device of the construction shown in Fig. 16 with the latch device in a locked condition;

Fig. 18 is a view similar to Fig. 17 with the latch device shown in an unlocked condition;

Fig. 19 is a sectional view taken on the line 19-19 of Fig. 17;

Figs. 20a20d are side views of difierent forms of latching members;

Fig. 21 is a side elevational view of a sash stile and associated latching device with the latter being slightly modified from the Fig. 16 construction;

Fig. 22 is a sectional view taken on the line 2222 of Fig. 21;

Fig. 23 is a view similar to Fig. 22 showing a slightly modified form of trim plate and taken on the line 23-23 of Fig. 24;

Fig. 24 is a partial sectional view taken on the line 24-24 of Fig. 23;

Fig. 25 is a perspective view of an upper sash track member;

Fig. 26 is a perspective view of a lower sash track member; and

Fig. 27 is a perspective view of a jamb adapted to receive the track members of Figs. 25 and 26.

Referring to the drawings in detail, there is shown a window construction 1%) of the general type disclosed in my above referred to patent, said window construction at one side thereof comprising laterally spaced casings 12 and 14, a blind stop 16, a filler strip 18, a stop 19, and a window frame jamb 20, the latter being secured between stop 16 and casing 14. The opposite side of the window The latching member 106.has an end portion 114 runner 22' is secured' to 'the 121mb, in an'yf suitablej manner, for example by means offsuitable fafstenerfel' me'nts which extend through apertures provided infpart 24. The runner ZZdefines' tracksf36and iifi fonthe stiles '26'and 28, respectively, 'Disposed'adjacenfthejamb 20; and laterally-movablerelativejthereto in the manner to be"described"in detail hereinafter, are a structurally 'similar pair of independently movable runners 40 and 42 which define tracks" 44 and 46 for the vertical sliding movement of their associated sash stiles 48jfand'; 50, respectivelyf" Thus, the companion pair of tracks 36 and 44 guide'the window-sash for vertical sliding movement and similarly the companion pair of tracks 38 and 46 guide the window sash 32 for such movement.

rhe mnners-*4oaud 42fihave, flanges 68 and 70, respectively; which are adapted for slidable movement during-'the rnov'em'ent ofsaid runners, and each of the inner end portions 72 and 74 of the flanges 68 and 70, respectively,-is' adapted' to be received in the ve rticalslot" 76 provided in the jamb 20 on the depression of-itsassociated runner as. -shown in Fig. 21 Therunners-4G and*42 have laterally projecting parts 78 and 80, respectively, whi h collectively define a vertically extending: spacer st1ip.-

It willzhe understood thati themovable runners and 42 may be laterally movably secured to the jamb 20 inany-suitable: manner; In order to urge the mov'able runners away from jamb 20, there is provided a series ofsprings s2zinterposed between said jamb and said movahle.runners-,Fsaid springs being ofthe-construction, and supported in position in the manner illustratedarid -describedyrin 'myabove referred to patent or in myicopending application Serial. Number. 477,524, filed December'24,:195j4:: Theipartingstrir'a: 83 (Fig. 3-) come-- sponds in all respects to the parting strip which is fixed to, he jamb;head,ofrthegwindowframe of myabovesreferred; to; copendingfapplication. p I

rsuantltother-present invention; eachof the sash stiles 26 and 28 is recessed or mortised as: indicated at. 84.

for the reception of-{ a latchdevice. 86, the latter. comprising a generally U= shaped hracket 88 havinglaterally spaced walls;, 90, and; interconnected by transverse wall 94, said wall 92 defining a face plate which is'flush wi'th $395.0? th uten ide. 9610f; its, companion stile. The face plate 92 is secured to its companion stile by means ot the screws 9%; which exicndrthrough complemental-y apertures 100 provided in said tape plate. The walls '90 and 92 have aligned;apertures,102 andQIM- espectively, extending therethrqllgh; the latter; aperture being elongated in a substantially horizontal plane; for

a purpose which. will; be; evident frgmjhe -description whichffollowsl The latching merrrber 106; ismqunted; to

thebraclie t ss for pivotal bodily movement and for agrial;

reciprocation, saidlatchingme mber hay-ing a, reduc ecld'rame tershaft portion 108 loosely extending throughjthe. aperture102 (Fig. 5) 'It will betobserye d thatgthe stiles 26 and 28 are provided with a closed bottom apertu indicatedat112ior theextensionzthereintof the port on 108 for a" purpose to be described in 7 extends through the elongated 'apcrtili e, raises rig sj ll'lall 13 P ojects beyond thssmrsc of theisi de i fi of its compa'nion stile, said end portion having a sleeve 116, formed of 'r' ubber or'any other suitable imate'rialisecui ed thereon M for silencing the action of said. end, portion the move;'

ment thereof in association with companion structure; to;

be described-hereinafter.

detail hereinafter A. engagement in companion grooves' 126; and 126" profollows, there is provided-a generally U-shaped spring 118 having one end portion 1201s ured to said wall in any suitable manner, for eirample b me H: or the rivets 122, the opposite end' portion 12'4' beingf V-sha'ped for intervided on said lat ching merriber; In the normal projegted-posi tionof; the latching, mom-hernias" shownjint Figs.

1, Sand 7 theportion124 is interengaged ,in groove 126:

9; eleasa lv ing. idlatchingz member in pc:

fipn, d t in mb being xially e ractible o a. substantially flush condition with the, face plate 92 1' as shown inFig. 2 by the maniplllationoi thgfinger-piece or element 128 and said portion 124 interengages; in;v

groove i2 6? in :said' retracted-position; otthe latching, member; Thus the spring portion 124. readily disengages from one companion groove and engages in the othercompanionvgroove on the reciprocation of. the latchin gf meml zer in the manner, described above, The latcha ing member1t ,m ay. be pivotally-bodilymoved toward the well l theactionof'the spring 1118?, bymeans of the fingerpiege 128 which is, manually d pIfeSsible; the latter being threadedly engaged/to" said latching'f'meniber,"andiiextending through, the elongated; opening I 130provided in, the sash stile 2:6; and 2S. It'fwill,befohservedthat the portion 1&8. extends' hrbught pe ture; 10" of wall 90 .w 8 51 cient clearahcejto provide[for sue pivotal' m'ovement.

With eference totF-rigs r l anc1 5,fthefiged runner 22" has defi w i h ext nd longitudina ly 8 ja apt d' f r o p ative, 'assjoqi' I latching "members 106 carriedjfby; the 's'a shlstilesi 26 1and runner and which 28;]respectively. The portionyllj l' of the latching mema br 106 is adaptedto ride alongits companion track 132 or 13,4,the latter having oppositely disposed track edges 136and 138 interconnectedby thebase wall 140j of the track. Each; of the tracks has a plurality of vertically spaced shoulder porjtions or ledges 1'42 adapted for releasable interengagementwith, a companion portion 114 for 'releasably positively latching its companion: sash at A Each of the track,

corresponding positions or levels. I edges lfifl" is provided with inclined or camedges 144 extending upwardly from the shoulder portions 142 to I provide for sash movement in an upwardfdirectionpast saidshoulder portions without manually releasing the latching member. It willbe understood that the tracks 132-and-134 extend fora length corresponding to the range ofvertical' movement of their companion sashes. In' the illustratedembodiment a latch device 86 is providedin the stile 26- in the lower end-region thereofwhile the latch device of the stile 28- is-disposed inthe upper end region thereof, itbeing understood-that it is within the scope of the present invention-to position such latch devices at any desired level onthe "sa'shstiles withthe tracks 132 and 134 being correspondinglypositioned ,for cooperative associationwith their companion latch devices.

The .fixe un ers 22; may e preformed to the; shape best shown inEigsA and 5 in any conyentional manner, v for example by means of a stamping operation The L and movable runners in: conjunction with the' springs 82' described-above. Thus the cumulative etiect of the bias ing of the movable runner and" the latching member is to releasably retain the companion sash in its vertically adjusted position, it being noted th'atsuch biasinglfpressure islofa magnitude to provide for'the manual sliding movement of the sash with ease. It is also within the" scope of the presentinvention to have the-movablerum '94fforjthe purpose; to,be hereafter noted, against ai t u urally" siiIiilarTl k t 32t f and 13.4.

on with companion t 1 rtairifthe, companion ner and latching member lightly biased so that the cumulative effect of such biasing is insutficient to retain a sash in its vertically adjusted position, such sash being releasably positively latched in position at a desired level by the interengagement of portion 114 with the shoulder portions 142. While the sash may be slidably moved in an upward direction past the shoulder portions 142 without manually releasing the latching member 106, the movement of the sash in a downward direction past said shoulder portions requires the manual release of said latching member, and this release may be facilely effected by manually depressing the element 128 to pivotally move said latching member out of engagement with said shoulder portions. Thus the lateral movement of the movable runners toward jamb will be ineffective to release their associated sashes for downward movement past the next lower latched position corresponding to the next lower shoulder portion 142 thus introducing a substantial safety factor to the above arrangement.

The latching member 196, shown in Fig. 8, is similar to the latching member 106 previously described except that latching member 106 is provided with a single groove 126 for interengagement with the end portion 124 of the spring 113, said end portion having vertical and inclined portions 150 and 152, respectively which are interconnected by a transverse portion 154 and said groove being formed complementary to said end portion. In the normal projected position of the latching member 1% the end portion 124 interengages in the groove 126" for releasably retaining said latching member in said position, said latching member being retractible in the manner described above and being retained in its retracted position by the tension of end portion124 of spring 118' against an adjacent surface portion of said latching member.

For the removal of a sash from the window frame the element 128 of its companion latching member 1% or 166 is manipulated laterally away from the fixed runner 22 to reciprocate said latching member to its retracted position described above and in this position the sash may be readily bodily removed from the window frame by the movement thereof towards the jamb 20, as shown in Fig. 2, until the stiles 26 or 28 are cleared for movement outwardly of the frame, said sash movement being effective to concomitantly move its associated movable runner toward said jamb against the action of the springs 32 associated therewith.

if desired, the fixed runner 22 may be formed in the manner of the fixed runner of my above referred to copending application in which the tracks are formed without a base wall corresponding to the wall 14% of the illustrated embodiment, and where a fixed runner of this general character is utilized in closely adjacent disposition to the jamb 2!), the latter may be slotted or recessed for registry with such tracks for the extension therein of the end portions 114 of the latching members. (See Fig. 13.)

With reference to Figs. 9 and 10, there is shown a modified form of window construction 10' which is similar to the window construction 10 described above except that construction 10 dispenses with the use of a fixed runner corresponding to the runner 22 and is provided with a jamb 166 having defined therein structurally similar tracks 132 and 134' which correspond to the tracks 132 and 134 previously described. The jamb 1653 may be formed of any suitable material, for example and without limitation wood, plastic, or the like, and suitably secured to jamb is a spacer strip 162 for guiding the vertical sliding movement of the window sashes 30 and 32.

The tracks 132' and 134 extend longitudinally of the jamb 169 and are adapted for cooperative association with companion latching members 166 carried by the sash stiles 26 and 28, respectively in the manner described above in detail. The portion 114 of the latching mem- 6 her 1416 is adapted to ride along its companion track 332' or 134', the latter having oppositely disposed track edges 136' and 138 and a vase wall 140. Each track has a plurality of vertically spaced shoulder portions 142 adapted for releasable int rengagement with a companion portion 114' for releasably positively latching its companion sash at corresponding levels. The portions 142' are of arcuate configuration to conform to or approximate the curvature of the portions 114. Each of the track edges 138 is provided with cam edges 1144' extei. upwardly from the shoulder portions 142 to pro vide for sash movement in an upward direction past said shoulder portions without releasing the latching member. In all other respects the wnidow construction 16 respor With reference to Fig. 11, there is shown a jamb 164) which is identical with jamb 16d of window construction ltl except in the respects now to be specifically noted. The tracks 16 i and 166 correspond in all respects to the tracks 132' and 134 except that the former tracks are provided with a coextensive or substantially coextensive liner or insert 163 which may be of any suitable construction and formed of any suitable material, for example a suitable metallic material having the requisite characteristics, said liner being secured in said tracks in any suitable manner. t will be apparent that the liners define bearing surfaces which are adapted for cooperative association with the portions 114.

In the embodiment of Fig. 12, the jamb 16%)" is identical with jamb except that tracks 132' and 134 are provided with liner or insert elements 170 of suitable construction and material on the shoulder portions 142, said elements extending a short distance along the cam edges 1&4. The elements 170 are preferably of metallic construction and each of said elements are secured in position in any suitable manner, for example by means of the laterally projecting apertured tab 172 which is secured to the base wall 140' by screw 174, said elements constituting bearing surfaces for the portions 114 in the latched condition thereof. It will be understood that the tabs 172 are disposed to clear the portions 114' on the movement thereof along the tracks.

Accordingly, if desired, as when the jamb 160 is formed of soft wood or other material, said jamb may be provided with a liner of the character shown in Fig. 11 or with liner elements of the character shown in Fig. 12.

From the above it will be apparent that the embodiments of Figs. 9-12 possess the inherent economies accompanying the dispensation of the use of a fixed runner of the character of runner 22.

With reference to 13, there is shown a jamb 176 having a dual fixed runner 378 secured thereto by the fastener elements 136, said runner being of any suitable construction and material, for example a one-piece metal stamping. The runner 17:; has a projecting channel part 132 which defines a spacer strip for guiding the vertical sliding movement of associated sash stiles. The runner H8 defines tracks 28 i and 1 86 for associated sash stiles in the manner described above in detail with reference to embodiment Lil, said runner having defined therein structurally similar tracks 18% and 1% which are adapted for cooperative association with companion latching members The tracks 183 and 399 have oppositely disposed track edges 1% and 1% and vertically spaced shoulder portions 296, said track edges and said shoulder portions being adapted for cooperative association with a companion portion 114 in the manner described above in detail with reference to window construction it The jamb 176 is provided with clearance grooves 1%, in registry with the tracks 188 and 190 and extend ing at least for the length thereof, said grooves being adapted to receive with clearance the portions 114- projecting through said tracks. Thus the embodiment of Fig. 13 is similar to window construction 10 except that the former isprovided w ithedges l92..and 194 which are of the thickness. of thelmaterial of the runner, 17mm is:n ot provided with track walls correspondingto the base walls. 140m construction 10, said former embodiment additionally being provided, with a jamb having grooves 1 9$,for the extension therein of. the end portions 114 of the latching members.

construct ior1 10f except i n the' r espects now to be described, said jambi 2illlghaving a spacjer. strip 282 suitably, secured thereto. The tracks 20,4 extend longitudinally of the 200 andtcorrespond, to the tracks132' reference to Figs. 14 andlS, there is shown a jamb 2.00. whi chfis similar to the jamb 160of window 7 and 13 4 of embodimentv 10, said tracks 204. being 7 adapted to cooperate with companion latching members l06' in the manner described above in detail The tracks 2'04 are definedby. longitudinally extending grooves 208 cam surface j224 which smoothly merges with an edge 2260f acompanion groove 208. 7 Thus the surfaces 222' of the parts 210 are aclapted for, releasable interengage rnent with a companion portion 114' in themanner previously describedfin detail and the cam surfaces 224 provide for sash movement'in an upward direction past said surfaces 222 withoutreleasing the latching member.

The grooves 298 may have anydesired number of latch parts 210 secured therein and said latch parts may be vertically spaced as desired for latching a companion sash at corresponding levels.

The body portion" of the latching member 106 between the portions 103 and .1-14 thereof, oflatch device 86 may be of circular cross; section as shown in the illustrated embodiment or of any other desired cross section, for. example :quadrilateral'cross section as where it, is,desired;to.increase the bearing surface of the grooves- 126, 126, and 126'; for their. companion spring portions.

With reference to Figs 1 620a, there is shown a modified formoflatch device230 which is generally. similar to thelatch device sddescribed above except in the respects to be pointed out in detail hereinafter. The latch device 230 incorporates an anti-burglary feature so that its associated sash may, be locked in a closed or near closed'position in a burglarproof manner as will be described in detail below. The latch device 236 comprises a U-shaped bracket 232,.which corresponds to bracket- SSdescribed above,said bracket 232 mounting a latching member 234 for pivotal bodily movement and for axial reciprocation in the manner described above in connection with latching member 106. The latching member 234 has a central-part 236 of quadrilateral cross section and end parts 238 and 245) of circular cross section, said end parts corresponding to the parts 108 and 114, respectively of latch device 86.

Secured tothe bracket 232 isa spring 242 which biases the latching member 234 in a horizontal plane, said spring. having an end portion 244 which interengages in the V-groove, 246 in the normal projected position of saidlatching member as shown in Fig. 18. The latching member 234 is axially. retractible in the manner previously. described .for sash removal from the window frame and is axially projectible to a sash locked position as shown inFig. l7 inwhichthespring end portion 244 is-partially disengaged fromthe groove 246.

In order; to locka said sash locked position or :near imposs andin a burglarprqofmanner, thefingen piece 2.4 8.is.

threadedly. disengagedjfrom the: part 236 of latching"v member 234 an, alock sc rew 250 is substituted therefor? new r/soreness is thr'eadedthrough thetapped aper? ture 252fand extends through'a registeringfaperture .254

in the spring; 242 into. al iutti'ng relation with the wall.

zss-or the bracket, 232 :and. thestop member: 2581' which r is secured to saidwalh By the riv' ets '26tl.v The'stop mem;

ber 25 8.I'is,.l coh'stituted. by an angle part. having a deithe axial retraction.of..therlatchingi member 234 and verl-j tical movelnent of its associated sash when the lockl'screw is inva locking.position as shown in Figs. 16, 17,. '19. It will be app ar ent thatthe.lock screw,.'which,abuts'tlie wall 256. of the bracket effectively prevents the pivotal I bodily move mentvof thelatching member, and sash. r

lease. if desired thestop 258.may be constituted by an integral SilEIlQk Olli. P Ql'ilOD. ofthe Wall 25.6.

The lock scr, w 250 isla conventional screw 'havinga slottedflat head.-2 which isfin fiushirelation with the planar. surface; 266 offthe, inn; 2361\vith the slot 268;

of the;scr ew head,being in. alignment with; and of cor responding. thick ess as,fthe. slot 27 0.; of I said planar surface 266 inthe locked condition of said lock screw (seev Fig.2 2021);: Aeeo rdingly inlthe .lockedcondition of thei. lockv screw accurate, registration of a screw driverwith slot 268. isrcgnird to remove the lock screw and this. may be. easily. effected .by, one frornan. insideposition or. from .insidethe building structure but becomes a difiicult a bl taskffor agburglar. who must gain access to; such .0

frustrated in his I attempt sash) rendering. such; construction. burglarproof or essentially so. Without frontal visual: access to thelock screw, moving a. screw. driver. along slot 270 to regportion of. thesc'rewd I 4 Y W Iver which extends. beyond slot. 268,.will effectively,v prevent-lock screw, backout and re-. moval. :he. lock screwmay be. disposed at any posir tion along: the length; of the part 236 andit. iswithin.

the scope ofa fl'fippresent, nvention to, arrange oneor more slots along the" slotted headof the lock screw alignswith. at least.

one I of such slots, in the flush or locked condition thereof. In Fig, 2% the. surface 266' is provided with 'additional. horizontal islets, 272 which. extend for the length of the part 23.6 to further confuse and frustrate a wouldbe burglar. without frontal visual access to the lock screw.

In- Fig.- 20c,v the slots 2l4 are' arranged vertically with. one of said slots 27.4 aligning with the slot 268 of the.

lockscrew. hcadfinthe lockedposition thereof. In Fig.

20d1the slots. 2"].61-arq5v arranged diagonally with. one of i said slots 276' aligning with the slot 268 of the lock screw head in the locked positionthereof- Securedinthe elongated opening of the sash stiles is a trim plate 2i s whichtcomprises,'an outer plate 280 and a recessed part 282, the latter .interfitting in said.

opening. a The outer, pl te 289- is secured to, the. sash.

stiles ,in flush relation therewith by screws 2 84 which extend through the apertures 286 provided in said outer.

plate. v The grearwallfliis of the recessed part isprovided with an.elongated"o pening 29 0.f0r. the extension therethroughof, the finger piece, 248 and the lock screw replacement therefor, said rear wall having a peripheral gasket 292 securedthereto, and in adjacent relation with i the latching member 234 for deadening or absorbing the sound betweensaid rear wall'and the latching member. If. desired, springs 294.may. be substitutedforgasket 292:

as shown in Figs'..23. and 24, said springs beinghorizontallydisposedand securedat. one end to thefrear wall 2889f the recessed part, the opposite end beingfree,

ck screw fromjanfou tside position, as -by.. breaking a windowfpaneg or the dike. Thus a burglar without frontal; visual access to. the lock screw will be a i l g to, remove I'such. lock screw. assuming he is suificiently accomplished to know. that. such lock screw. removal 5 required. forunloekingthe ,ister with slot- 268 only is a. difficult task as any small aid part-.inany desiredmanner sothat.

bearing against the latching member for biasing the latter away from said rear wall. It will be understood that the part 236 of the latching member is accessible through the trim plate and that finger piece 243 is normally secured to said part for actuating the latter as described above, said finger piece being removed and a lock screw substituted therefor by the householder when it is desired to lock the sashes in a burglar proof manner.

As best shown in Fig. 17, the latching member is preferably disposed at an angle to the face of the sash stile and the plate 283 of the trim plate to render it more difficult to engage the lock screw head with a screwdriver from a blind position and thus to further frustrate a would-be burglar. Where the plate 289 of the trim plate overlaps the sash stiles as distinguished from a flush assembly as shown in Figs. 17-19, said plate may be provided with one or more projections 2% (Fig. 16) to frustrate the use of a locating template on said plate for the lockscrew by a burglar, said projection being disposed at any desired peripheral position and different plates may have differently positioned projections. Similarly, if desired, a side wall portion of the recessed part 282 may be provided with one or more projections 293 (Fig. 21) to frustrate the use of a locating template in said recessed part for locating the lock screw by a burglar, said projection being located at any desired position and different trim plates may have differently positioned projections.

With reference to Figs. 2527, the jamb 30d, companion to the latch devices 230, has a spacer strip 392 suitably secured thereto, said jarnb being routed to define longitudinally extending grooves 364 and 364- therein similar to grooves 2% previously described. The upper and lower sash tracn members 3th: and 3M, respectively are suitably secured in the grooves 3% and 394, respectively and the upper sash track member is adapted to cooperate with the upper sash latch device whereas the lower sash track member is adapted to cooperate with the lower sash latch device. The track members may be of any suitable construction, for example of solid metallic construction or a hollow stamped metal construction, each of said track members having a series of vertically spaced shoulder portions 368 and cam edges 310 extending upwardly from said shoulder portions for the purposes described in connection with the corresponding shoulder portions 142 and cam edges 14 i. Suitably secured in cutouts at the base of the cam edges 31% adjacent to shoulder portions 393 are sound absorbent pads 31?. formed of rubber or any other suitable material, said pads being effective to deaden or absorb the sound of the latching member engaging said shoulder portions.

The track members 3% and 3% are provided with end portion locking recesses 314 and 314, respectively for the latching member and, more particularly, for the end portion 114' thereof, said recesses having registering recess portions 316 and 31s, respectively defined in jamb 3i) as shown in 27. The recess portions 316 and 316 extend below the grooves 3M and 394' and are substantially coextensive with said end portion locking recesses.

The outermost locking recesses and registering recess portions are adapted for the reception of companion latching members for locking the sashes in a fully closed position whereas the adjacent locking recesses and registering recess portions spaced from said outermost recesses are adapted for the reception of companion latching members for locking the sashes in a slightly opened position and thereby providing some room ventilation. The registering recess portions provide an extra margin of locking safety as the latching members will remain positively locked in the locking recesses even where the would-be burglar attempts sash removal by the movement thereof away from jamb 3%. Accordingly the latching members extend into the recess portions 316,

10 316' in the locked position thereof as shown in Fig. 17 and a substantial length of the latching members extend into the locking recesses 31%, 314 even where a sash is laterally shifted attempted sash removal. It will be observed that in the locked position of the latching members the part 236 thereof abuts the face plate 92 of the bracket 232. In the normal unlocked position of the latching members as shown in Fig. 18, said latching members are retracted from the recess portions 316, 316' and operate in the manner previously described in detail with reference to latch devices 86.

If desired, an additional conventional locking device may be used for locking the sashes in a closed position. The latching member may be magnetized if desired so as to render it more difiicult for a burglar to locate the lock screw with a screwdriver formed of magntically attracted material.

While in the illustrated embodiments, the latch devices have been shown in association with removable sashes, it is within the scope of the present invention to utilize such latch devices in association with non-removable sashes, such as is presently in widespread use in existing building structures, and in such a non-removable sash installation the window frame or jamb member, adjacent the latch devices, will be provided with suitable track structure for the reception of companion latching members of the latch devices as aforedescribed.

While in the illustrated embodiments a pair of sashes are shown installed in a window frame, it will be apparent that it is within the scope of the present invention to provide a Window construction of the aforedescribed character utilizing any desired number of sashes.

While there is shown and described herein certain specific structure embodying the invention it will be manifest to those skilled in the part that various modifications and rearrangements of the parts may be made without departing from the spirit and scope of the underlying inventive concept and that the same is not limited to the particular form herein shown and described except insofar as indicated by the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

l. A latching device for a window construction of the character described, comprising a bracket having aligned apertures one of which is elongated in one plane, a latching member mounted for pivotal bodily movement in said plane in said aligned apertures, said latching memher having an end portion thereof extending through said elongated aperture and extending laterally beyond the surface of a companion Wall of said bracket, means carried by said bracket for resiliently biasing said latching member in said plane, said latching member being axially movable from said position in which said projecting portion extends laterally beyond said surface to a retracted position in which said projecting portion is retracted inwardly of said bracket from said first mentioned position, and means for locking said latching member in said first mentioned position comprising abutment means carried by said bracket and a lock screw carried by said latching member disposed for engagement with said abutment means in the lockin position thereof, said lock screw in the locking position thereof being disposed in flush relation with adjacent surface portions of said latching member.

2. A latching device, comprising a bracket mounting a latching member for axial movement between first and second positions, and means for locking said latching member in one of said positions comprising abutment means disposed in fixed relation with said bracket and a lock screw carried by said latching member disposed for engagement with said abutment means in the locking position thereof, said lock screw having a slotted head which is disposed in flush relation with adjacent surface portions of said latching member in the locking position of said lock screw, said latching member surface portions assess-a 'being slotted with said slot having a cross section corre-w sponding to the cross sectioniof said lock scfew head. slot,, the latter being in alignment withv said latchin gl member slot whereby to, rendenlock screw"removal bunglarproof from a positionw houtfrontal visual access Q me) it A t 3. A latching device for a window construction of. the

ch aract er de s cribed, comprising a bracket having aligned. apertures-one. of which. is elongated in one plane a,la'tc 7 ing member mountedjfor pivotal bodily moyem e ntiinsa d. plane in saida lign'ed apertures, said latching member having, anhend portion thereof extending ithroughl said elongated'aperture' and extending laterally beyondtlie surface of a. companion wall of. said bracket, means carried. b yisaid bracket for; resiliently biasing said latchinginem; berinlsaid plane towardsone end of said elongated aper- V ture, said latching member being axially movable from saidposition in which said projecting, portion" extends latefally beyond'said wall surface to a retracted position. incwhich saidprojecting portion is retracted inwardlyoft said, bracket from said first mentioned position, and means for locking said latching member in said first mention'ed axial position and disposed at said one end of saidi'e'lon gated aperture, said means comprisingabutment means carried by said bracket and a lockfscre'w'carried by saidlatching, member disposed for engagement with said abutment means in, the locking position thereof, said lock. screw; having a slotted head which isfldisposed'in flush relation'withiadjacent surface portions of said'latching'cmember in the locking position of said lock, screw, saidl'atchingmember surface portions being slotte d with said-slot havinga cross section corresponding .to the cross sectionoffsaidlock screw head slot, the latter being in alignmenfwith said latching member slot wherebyto, renderl lock. screw. removal burglar proof fromaposition: without frontal visual access thereto.

l 4-.' A latching device for a window construction of the. character, described, comprising a bracket having aligned apertures one of which is elongated in one plane,fa latch ing member mounted fortpivotal bodily movement in saidplane infs aidjaligned apertures, said latching member having an end portion thereof extending through said, elongated aperture and extending laterally. beyond the surface 'of-a' companion Wall of said bracket, means carried'by said bracket for resiliently biasing said latching, member. inj'saidvplane towards one end of said elongated. aperture, said-latching member being axially movable; from saidpositioniin which said projecting portionv ex tendsilaterally. beyond said wall surface to a retracted position infwhich said projecting portion is-ret racted inwardly of said bracket from said first mentioned positied, and means for locking said latching member in said first mentioned-axial position and disposed at said one end of said elongated aperture, said means comprising abutmenttmeans carried by said bracket and a lock screw carried by. said latching member disposed for engagement with said abutment means in the locking position thereof, said lock screw having a slotted head Which is disposed. in flush relation with adjacent surface portions of said latching member inv the locking position ofsaid lock screw, said latching member surface portions being slotted with said slot having a cross section corresponding to the cross] section" of said lock screw head slot, the latter beingin. alignment with said latching member slot wherebyfto. render. lock screw removal burglarproof from a position without frontal visual access thereto, saidlatchingmem ber surface portionshaving at least one additional slot corresponding in cross section to said first mentionedlatching, member surface slot laterally spaced from the latter. SLA latching device for a window constructionjof the character described, comprising au-shaped bracket having laterally spaced walls and a connectingtransverse wall, said laterally spaced walls having alignedapertures one of.;which is elongated in adirection towardssaid th'edatter being in alignment with said latching memb'erb 3 laterally beyond thei' siirfa transverse wall, a latchingrnember mounted for, pivotal;- bodily 'ino veiiient in said direction .in said alignedfaper unseen latchingmeniber having -attend portion thereof, eitt jendin gitlirough said elon d a one andeiite nding; of a; companion lateral? wall of saidbrackeLfsaidl H ing member beingaxi'ally' movable from saidiposron in which said projecting; portion extends laterally beyond said wall surface ,foai retracted position in whichfsaid projecting portion is" retracted inwardly of said bracket from said first'men tioned position, means carried by saidfbracketioi reisiliently biasingfsaidlatching member in said'direction; andfmeans for locking said latching member said; first mentioned axial position with said latching 'memb disposed, attlie end of said elongated aperturerem 7 from said transverse wall, said means comprisin'gabu 1 ment means carried by said bracket and al'ocli 'scre carried by said latching member disposed for engage-- ment with. said abutment means in. the locking position; thereof, saidl'ock screw having a slotted. head which is disposed in flush relation with adjacent surface portions ofsaid latching member in the locking position ofsaid lock screw, said latching member surface portions being,

slotted' with said slot havinga cross section correspond; ing to the cross section of said lock screw head' slot;

slot whereby to render lock screw removal burglarproof'f from a'position without frontal visual access thereto, said lock screw engaging said transverseiwall to prevent" pivotal bodily movement of said latching member' towards said transversejwall, i I p 6. In a Window lock, a latching member comprising; an apertured' device and a lock screw'therefer, said lock" screwfbein'g mountable in said aperture forlocking sai d' latching member and axially movable longitudinally on,

the, rotation thereof for unlocking said membensaid lock screw havingthe head thereof disposed in substan j tially flush relation with adjacent surface portions of said device in the locking positi'on of said lock screw,

- said' lock screw head and the surface portions of: said device'being" slotted with said slots being'of corresponding" cross section and in alignment whereby tojrenderlock screw removal 'burglarproof from a position without frontal visual access thereto. V

7. A latching device, comprising a bracket mounting a latching member for axial movement between first and secondpositions, said latching member comprising an; apertured' device, and means for locking said "latching member 1n one of said positions comprising a lock screw' 4 and companion stationary stop means, said lock screw being mountable in said aperture-in cooperative relation with said stop means for locking said latching member I and axially movable longitudinally on the rotationth'ereof for unlocking said member, said lock screw having the headthereofdisposed in substantially flushrelation with adjacent surface portions-of said device in the lock ing position of said lock screw, said lock screw hearlzand the surface portions of said device .being slotted with said slots being of corresponding cross section and in V alignment whe'rebyto render lock-screw removal burglarproof from a position without frontal visual accessthereto.

References Cited inthe file ofthisflpatent UNITED STATES PATENTS 160,525 Husted Mar. 9, 1875 332,l Ayers Dec..8, 1885 1 ,301,260 Heinemann Apr. 22 1919 l,72-1,828= Mohun etal. July 23; 1929; 1,789,171 Dc ArmasyManrique et:al.,Jan. 1 3, 1931i 1,956,388 I Kalina Apr. 24', 1934 2,563,058 Neustadt Aug.'7, 1. 7 2,664,599 Zitomer Ian. 5, 1954" 2,694,237 1954 Rifkin I -4. 'Nov. 1s,- 

